[arch-general] keyboard problem

I'm trying to remove Gnome from another machine, but here starting Xorg with startx gives the following error: (EE) Microsoft Natural® Ergonomic Keyboard 4000: failed to initialize for relative axes. While GDM works perfectly fine. How can it make a difference? And where should be the driver for that keyboard that I can't find anywhere in aur? This is the configuration (very simple) of the keyboard from Xorg: Section "InputClass" Identifier "evdev keyboard catchall" MatchIsKeyboard "on" MatchDevicePath "/dev/input/event*" Driver "evdev" Option "XkbLayout" "it" EndSection Thanks, Andrea